Finding the Fourth Proportional to 106,349.83, 159,560.97 and 66,860.71
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Solution
The fourth proportional to 106,349.83, 159,560.97 and 66,860.71 is: 100,313.84
Step by Step Solution
- Step 1: Write the proportion equation
106,349.83 : 159,560.97 = 66,860.71 : x - Step 2: Convert to fraction form
106,349.83/159,560.97 = 66,860.71/x - Step 3: Cross multiply
106,349.83x = 159,560.97 × 66,860.71 - Step 4: Simplify right side
106,349.83x = 10,668,359,742.49 - Step 5: Solve for x
x = 10,668,359,742.49/106,349.83 - Step 6: Final answer
x = 100,313.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.